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765546

Sigma-Aldrich

官能化金纳米粒子COOH

30 nm diameter, carboxylic acid functionalized, PEG 5000, OD 50, dispersion in H2O

同義詞:

Au NP COOH, 金胶体

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About This Item

分類程式碼代碼:
12162002
NACRES:
NA.23
暫時無法取得訂價和供貨情況

材料

PEG 5000

形狀

dispersion in H2O
nanoparticles

包裝

poly bottle of 1 mL

外徑

50

直徑

30 nm

pH值

6.0-8.0 (25 °C)

溶解度

water: miscible

密度

1.00 g/cm3

λmax

525 nm

官能基

carboxylic acid

儲存溫度

2-8°C

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一般說明

Gold nanoparticles (AuNPs) ranging from 2-200nm in diameter find applications in diverse fields. They show excellent biocompatibility and attractive physicochemical properties. Poly (ethylene) glycol (PEG) surface coatings on gold nanoparticles help in the reduction of protein adsorption, reduce nonspecific interactions with cells and greatly improve the pharmokinetics of these nanoparticles and reduce aggregation of the nanoparticles. PEG layer density depends inversely on the AuNP curvature. Denser coating was possible on smaller AuNPs. Carboxylic acid functionalized GNPs form conjugates with various protein molecules due to the electrostatic attraction between the negatively charged carboxylate groups and positively charged amino groups of protein. Since it adheres to cell membranes, it may find use in cellular and intracellular targeting in targeted drug delivery applications and also used in biodistribution studies.[1][2][3]

應用

功能化颗粒已被广泛用于研究纳米颗粒[4]的细胞摄取和靶向药物递送[5]
Several other specific applications have been listed below:
  • Since they adhere to cell membranes, AuNPs may find use in cellular and intracellular targeting in targeted drug delivery applications and may also be used in biodistribution studies.
  • AuNPs may also be used in photothermal therapy and radiotherapy.
  • AuNPs ranging from 10 to 250 nm, were studied to have been absorbed primarily by liver and spleen, when injected intravenously in rats.Whereas, 10 nm nanoparticles were distributed more broadly into various organs.
  • Carboxylic acid end-groups binds with various proteins and hence are used in targeted drug delivery and gene therapy.[1][2][3][6]

儲存類別代碼

12 - Non Combustible Liquids

水污染物質分類(WGK)

WGK 1

閃點(°F)

Not applicable

閃點(°C)

Not applicable


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